Engine Valves

Engine Valves are used for closing the combustion chamber and are installed on the engine cylinder. Efficient sealing of the valves is required in order to produce compression by the internal combustion engine, which is basically an air pump.

Characteristics of Engine Valves

• Two Wheeler Engine Valves are almost always round which give the advantage of rotating harmlessly while in use and can also be lapped in.
• Engine valves are installed on the engine cylinder head to close combustion chamber.

Materials used for making Engine Valves
The main criteria for selecting the materials for making engine valves are that it should be capable of surviving in two highly different operating environments. Some of most commonly used materials are:

• Titanium
• Aluminum
• Nickel Alloy
• Steel Alloy

Maintenance of Engine Valves

• Check for worn valve seals, they are characterized by a puff of blue smoke from the exhaust when pressing back down on the accelerator pedal after allowing the engine to over-run, such as when changing gear.